Define reg_version attribute for SQL 2014
Define reg_version attribute for SQL 2014

With SQL2014 the registry key path changed again.

jakimowicz/sql_server,jakimowicz/sql_server,mahsoud/sql_server,tpetchel/sql_server,opscode-cookbooks/sql_server,tpetchel/sql_server,chef-cookbooks/sql_server,criteo-forks/sql_server,mahsoud/sql_server,opscode-cookbooks/sql_server,chef-cookbooks/sql_server,criteo-forks/sql_server